Write the expression in the form a + bi.
A. 
+ 
i
B. - 
- 
i
C. 
- 
i
D. - 
+ 
i
Answer: C
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Provide an appropriate response. For women at Durham College, times to run the 400 meters are normally distributed. Which of the following are the most plausible values for the mean and standard deviation?
A. Mean = 77 sec, standard deviation = 16 sec B. Mean = 77 sec, standard deviation = 2.1 sec C. Mean = 77 sec, standard deviation = 20 sec D. Mean = 77 sec, standard deviation = 9.1 sec
Classify the statement as either true or false.The graph of g(x) = 3 x - 3 looks just like the graph of y = 3 x, but it is translated 3 units to the right.
A. True B. False
Solve the inequality. Graph the solution set and write the solution set in interval notation.
? 0
A. [-9, 1) ? (1, 5]
B. (-?, -9] ? (1, 5]
C. [-9, 1) ? [5, ?)
D. (-?, -9] ? [5, ?)
Graph the inequality.y ? 2x - 4
A. 
B. 
C. 
D. 